Heating device



May 2 1929- G. MANIERRE HEATING DEVICE Filed Dec. 19, 1924 Invent} 6 60/9? fl/LZIZZ erre Patented May 28, 1929.

PATENT OFFICE.

GEORGE MANIERBE, OF MILWAUKEE, WISCONSIN.

HEATING DEVICE.

Application willed December 19, 1924. Serial Kc. 766.942.

This invention relates to a heating device, and articularly to a device for preventing the f i eezing of the'cooling fluid of combus; tion engines while the engines are being kept, at rest in very cold weather. It occurs very frequently that the water in the radiator and radiator conduits of automobiles freezes when the automobile is left standing in the garage for over-night or for several days.

without being used.

The present invention has the oblect of overcoming this disadvantage by introducing into the conduit which ma lead from the radiator a small heater a apted to be connected with the source of heat accessible from the dashboard or some other readily accessible part of the machine.

It is also an ob'ect of the invention to provide a heater which will facilitate the starting of the engine in cold weatherand for this purpose to introduce the heater into the cooling system of the engine so as-to heat the water from which the heat will be transmitted to the engine oil.

It is. another object of the invention to facilitate this mounting or dismoupting of the heating device by providing it with a cas ing' which readily can be inserted intothe conduit of the radiator and which will be kept fluid-tight without requiring any parts to be welded together or without occupying excessive additional space under the hood of the engine.

i It is, furthermore, an object of the inventon to provide a heating device of this character in which the casing parts are identical and can readily be assembled to form a fluid-tight casing having an inlet and outlet opening only for the support of those means through which the heat is supplied to the heating device of the interior of the casing.

With these and numerous other objects in view an embodiment of the invention has been illustrated in the accompanying drawings wherein Fig. 1 is a side elevation of I. portion of an automobile showi certain of the parts away;

the device in place, ing shown broken Fig. 2 shows on a larger scale a central,

longitudinal section through the casing with the heating device therein in elevation;

Fig. 3 is a transverse, sectional' view on line 33 of Fig. 2, and

Fig. 4 shows one of the casing parts perspectively.

The radiator 1 which is conventionally shown in F ig. 1 as being located near the front part of an automobile engine, communicates through the conduits 2 and 3 with a water circulating devicewhich is not illustrated in the drawings. The invention is adapted to be applied to one of these conduits, as for instance to the hose'leading from the lower end of the radiator to the )ipe which extends to the pump, not shown. 1 his hose is severed by a transverse cut, and

the casing.4 having reduced ends 5 is in serted into the adjacent severed portions of the hose and heldsecurely therein by means of clamps 6 of any desired construction.

The casin 4 preferably i's'composed of two substantially cylindrical portions 7 integral with the attachment extensionsor reductions 5. A relatively large part 8 of the mar in of each cylindrical portion 7 is 10- ca in a plane at right angles to the axis .ofthe portion '7. In order to facilitate the,

attachment of this part to the companion part of-identical construction the margin is provided with a reinforcing flange 9 extendmg over the entire length of said margin. This edge is provided with an angular pro jection 10 extendin from the portion 8 axially outward of said plane, and is provided furthermore with an indentation 11 extending from the portion 8 axiallyinward, said in e the projection is high.-.

In the assembly of the com anion parts of which the caam is form these parts are laced in aria? alinement and rotated relatively to each other until the indentation or notch -11 of the edge in one part is in opposition to the projection 10 of the other part, and vice verse.v The height andde th respectively of these .pro'ections and ind tations is made so large t at upon the assembly of the arts as stated, there remains between the eepeat portion of the indentation and the hi portionof the abutting projectlon [circular opening 13 permitting the ofasmallhoeeortubm the will of the This tu ing of circular crow-section preferably contains a wire 15 of a material to be heated when connected with the ordinary commercial source of electricity, as for instance, a lam at for illuminating purposes. The heating elentat-ion 11', however, being deeper thanmeat consisting of the wire is preferably wound in the form of a helix with about two turns so that the two ends of this heating wire 15 project thru the same side of the casing. At the projecting ends the terminals of conductors 16 are secured to the ends of the wire 15, the conductors leading to a socket 17 preferably arranged on the dashboard 18 and adapted to receive the ordinary light plug, not shown in the drawing.

The entire structure COIHPX'iSiHf' the assembled casing with the heating e ement securely held therein may be sold as an article of manufacture and may readily be inserted into the tube connection extending from the radiator without interfering with the water circulation. The attachment can be put in place without requiring skilled help. After the parts have been assembled to form the casingthe joint of the two casing parts is improved by pouring a fiuidtight element or the.like-into the circumferential groove 20 formed in the assembled casing at the abutting ends of the parts since these parts are provided at their outer circumference with a bevelled edge 21.

Ithas already been proposed to place an electric heater in the interior of the engine hood to heat the entire interior by radiation. An excessive amount of heat is required and the costs of operation, therefore, are exorbitant. In the present case heat is produced in the interior of the conduit only, the water cooling system then' acts as a water heating svstem and the engine oil receives its heat through the. walls of the cylindrical base. ()wing to the reduction of the heat required by this method the costs of operation also are correspondingly reduced.

Owing to the insertion of the electric heatcr into the water conduit itself, the water will be gradually heated upon energization of the heater and in cold weather this is of greatadvantage, as thereby the entire engine will be brought to a temperature at which the startingis facilitated.

' I claim:

As an article of manufacture, a casing composed of two identical parts and firmly joined together, the casing being adapted in assembled form for insertion into the radiator conduit of an automobile, each casing part having a cylindrical portion terminatmg in a margin which is provided with a' projection and an indentation, a resistance coil inserted in said casing and supported in sulated from the same, the projection on each casing part being of less height, measured axially, than the depth of the indentation on the other casing part to leave a space between the interfitted indentations and projections, the ends of the resistance coil being insulatingly supported in said space. i

In testimony whereof I affix my signature at 114 Grand Ave. Milwaukee, Wisconsin.

GEORGE MANIERRE. 

